{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "data breach", "arguments": ["number of victim", "number of data", "tool", "compromised data", "damage amount", "time", "purpose", "victim", "place", "attacker"]}], "input": "The assault on Hollywood Presbyterian occurred Feb 5 , when hackers using malware infected the institution 's computers , preventing hospital staff from being able to communicate from those devices , said Chief Executive Allen Stefanek ."}
{"data breach": []}